Average Co-Inventor Count = 1.80
ph-index = 6
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Yamaha Corporation (18 from 5,450 patents)
2. Yamaha Music Foundation (2 from 2 patents)
18 patents:
1. 8513511 - Apparatus for practicing playing music
2. 8502057 - Electronic musical instrument
3. 8242347 - Pedal output conversion apparatus and method
4. 7956275 - Music performance training apparatus and method
5. 7683250 - Electronic musical apparatus
6. 7667127 - Electronic musical apparatus having automatic performance feature and computer-readable medium storing a computer program therefor
7. 7579543 - Electronic musical apparatus and lyrics displaying apparatus
8. 7511214 - Automatic performance apparatus for reproducing music piece
9. 7465866 - Assistive apparatus and computer-readable medium storing computer program for playing music
10. 7355111 - Electronic musical apparatus having automatic performance feature and computer-readable medium storing a computer program therefor
11. 7297859 - Assistive apparatus, method and computer program for playing music
12. 7247781 - Interactive music application apparatus and electronic musical instrument and programs therefor
13. 7094960 - Musical score display apparatus
14. 6838609 - Communication setting apparatus and method for communicating tone performance data
15. 6492584 - Apparatus and method for generating or controlling tone on the basis of a plurality of tone generator units or tone control units